Chemistry Test Review

Front

What group is Sodium (Na) found in?

Back

Group 1

Front

How many atoms of Iron are in the equation 2HFe5Cl?

Back

10

Front

What is the name of the element with the symbol Na?

Back

Sodium

Front

What are the horizontal rows on the periodic table called?

Back

Periods

Front

What is a chemical change?

Back

When two or more substances combine to make a new chemical substance.

Front

What is the atomic number of Sodium (Na)?

Back

11

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is the significance of the atomic number?

Back

The atomic number represents the number of protons in the nucleus of an atom and determines the element's identity.

Front

What are groups in the periodic table?

Back

Vertical columns that group elements with similar chemical properties.